Description
Introduction to Efficient Lighting: The Interra KNX Ballast Controller
The KNX Ballast Controller (ITR500-0003) by Interra stands as a cornerstone for modern smart building lighting management. As lighting requirements become more complex, the need for reliable KNX Products that bridge the gap between digital control and analog dimming becomes essential. The Interra 4-channel controller is specifically engineered to provide precise 1-10V DC dimming, ensuring that commercial and residential spaces can achieve the perfect ambiance while maintaining peak energy efficiency.
Whether you are an integrator looking for robust hardware or a facility manager aiming to reduce overhead costs, the ITR500-0003 offers a versatile solution. This device is designed to integrate seamlessly into any KNX ecosystem, providing high-performance switching and dimming for a wide variety of electronic control gears (ECGs).

Key Features of the Interra ITR500-0003 KNX Ballast Controller
When it comes to advanced lighting automation, the KNX Ballast Controller is packed with features that prioritize both functionality and ease of installation.
Multi-Channel Dimming Precision
The ITR500-0003 supports 4 independent channels, each capable of 0-10V and 1-10V DC dimming. This allows for granular control over different zones within a room. By utilizing these KNX Products, users can transition smoothly between light levels, which is ideal for boardrooms, lecture halls, and high-end residential living areas.
Integrated Switching Relays
One of the standout features of this Interra model is its embedded switching relays. Unlike basic controllers, the ITR500-0003 can handle the physical power switching of the ballasts, meaning you don’t need additional contactors for many standard installations. It is rated for:* 23 ECG / 18W* 14 ECG / 36W* 11 ECG / 58W* 23 ECG-T5 / 24W
High Capacity and Scalability
Each channel offers a control voltage for up to 23 electronic control gears with a maximum output voltage of 100 mA at 1-10 V DC per channel. This high capacity makes it one of the most efficient KNX Products in the Interra catalog for large-scale deployments.
Technical Specifications: ITR500-0003
| Feature | Specification |
|---|---|
| Model Number | ITR500-0003 |
| Brand | Interra |
| Dimensions | 90 x 144 x 66 mm (H x W x D) |
| Current Consumption | < 12 mA |
| Power Consumption | < 360 mW |
| Output Voltage | 100 mA @ 1-10 V DC per channel |
| Output Switch Current | 16A / 250 V AC (10A for Fluorescent) |
| Bus Connection | Standard KNX Bus Terminal |
*Note: For fluorescent lamp applications, a maximum current of 10 A/250 V is allowed to ensure device longevity and safety.
Why Choose Interra KNX Products for Your Project?
Choosing the right hardware for your automation project is critical. Interra is a world-renowned brand known for its reliability and innovation. By selecting the KNX Ballast Controller from Interra, you are investing in a product that does not require additional voltage input, as it draws its minimal power requirements directly from the EIB/KNX bus.
Simplified Installation
The ITR500-0003 utilizes secure screw terminals for electrical connections, making it easy for electricians to wire. Its DIN-rail mountable design (90 x 144 x 66 mm) ensures it fits perfectly into standard distribution boards alongside other KNX Products.
Enhanced Energy Savings
Dimming is not just about aesthetics; it is about sustainability. By using a dedicated KNX Ballast Controller, you can implement light-harvesting strategies and occupancy-based dimming, significantly reducing the carbon footprint of your building.
Shop Interra at KNXbazzar
At KNXbazzar, we pride ourselves on providing the highest quality automation components. We offer a wide range of Interra products to help you complete your smart building project with confidence.
If you are looking for other KNX Products, our catalog includes everything from actuators to sensors and touch panels. For professionals looking to establish a long-term supply chain, we invite you to explore our KNXbazzar dealership program to access exclusive pricing and support.
Conclusion: The Ultimate Solution for 1-10V Dimming
The Interra ITR500-0003 KNX Ballast Controller is a robust, 4-channel powerhouse that simplifies the complexities of lighting control. With its high switching capacity and precise dimming range, it is an indispensable part of any modern KNX installation.
For more detailed technical documentation, you can visit the official Interra Technology website.
Ready to upgrade your lighting system? Add the ITR500-0003 to your project today and experience the reliability of Interra KNX Products available at KNXbazzar.






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